Laurel Hill Creek at Ursina, PA

1998 Water-Year
Fixed-Site Reach Assessment
Water-Quality Records
[drop]

--------
                                             YOUGHIOGHENY RIVER BASIN

                                    03080000  LAUREL HILL CREEK AT URSINA, PA
                                   (National Water-Quality Assessment station)

LOCATION.--Lat 39`49'13", long 79`19'18", Somerset County, Hydrologic Unit 05020006, on right bank 500 ft
   downstream from bridge on State Highway 281 at Ursina, and 2.7 mi upstream from mouth.

DRAINAGE AREA.--121 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--August to September 1913 (gage heights and discharge measurements only),  October 1918 to
   current year.  Monthly discharge only for some periods, published in WSP 1305.  October 1913 to September
   1918 (gage heights and discharge measurements only) in reports of Water Supply Commission of Pennsylvania.

REVISED RECORDS.--WSP 743:   Drainage area.  WSP 893:   1919-21, 1932-34.  WSP 1305:   1922-31.
   WSP 1435:   1919-20.  WSP 1625:   1932 (M).

GAGE.--Water-stage recorder and masonry control.  Datum of gage is 1,335.26 ft above sea level.  Prior to July 18,
   1939, nonrecording gage at bridge 0.5 mi downstream at datum 6.20 ft lower.

REMARKS.--Records good except for estimated daily discharges, which are fair.  Several measurements of water
   temperature were made during the year.  U.S. Army Corps of Engineers satellite telemeter at station.

PEAK DISCHARGES FOR CURRENT YEAR.--Peak discharges greater than a base discharge of 3,000 ft3/s and maximum (*):

                      Discharge    Gage height                                          Discharge    Gage height
 Date        Time      (ft3/s)        (ft)                         Date        Time      (ft3/s)        (ft)

Apr. 10      0600      *3,020        *4.50                          No other peak greater than base discharge.


                 DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
                                               DAILY MEAN VALUES

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1       129       79      987     e110      252     1230      303      263      363      289       33     13
  2       139      506      655     e115      225      890      334      291      173      174       23     12
  3        95      448      465     e120      199      739      251      299      252      133       17     11
  4        69      261      404     e340      192      555      242      304      181      112       16      9.8
  5        52      196      347      395      242      452      220      857      132      111       15      8.7

  6        41      156      280      388      297      367      193      772      116       89       14      8.2
  7        35      993      244      617      268      367      172      556       92       74       13     11
  8        31     2160      211     1890      235      749      176      544       80      142       11     22
  9        30     1580      191     1700      223     1430      751      468       71      376       12     24
 10        28      857      293     1120      215     1150     2680      356       83      197       16     18

 11        27      522      888      705      238      732     1350      299       75      136       25    e15
 12        24      376      618      491      554      516      738      313      128      108       22    e13
 13        24      293      433      399      677      401      494      272      197       92       18    e12
 14        23      391      336      323      462      337      380      214      440       80       16    e11
 15        23      654      266      264      347      276      319      181      286       71       17    e10

 16        22      431      225      265      290      230      263      158      298       72       17     e9.0
 17        21      313      201      249      329      206      240      199      537       76       19     e8.8
 18        20      253      179      233     1110      259      199      144      367       58       30     e8.6
 19        20      221      156      203     1670      471      509      117      916       45       23     e9.0
 20        20      206      150      188     1260      400     1180      101      704       39       17     13

 21        19      221      148      168     1070      542      713       94      408       37       14     15
 22        19      597      142      153      778      621      491       79      316       35       13     20
 23        18      651      232      375      618      478      384       70      491       51       16     18
 24        18      462      327      579      525      431      306       64      445       87       14     15
 25        47      344      559      393      418      377      252       66      263       44       27     15

 26        68      288      532      295      384      365      268       60      200       33       28     16
 27       108      260      429      256      395      342      709       50      186      e29       22    e13
 28       102      627      337      263      772      312      422       43      168      e25       18    e12
 29        57     1100     e250      269      ---      282      329       39      149      e23       15    e11
 30        44      868     e200      375      ---      248      290       48      153      e21       14    e10
 31        37      ---     e150      318      ---      221      ---       45      ---       33       13      ---

TOTAL    1410    16314    10835    13559    14245    15976    15158     7366     8270     2892      568    392.1
MEAN     45.5      544      350      437      509      515      505      238      276     93.3     18.3     13.1
MAX       139     2160      987     1890     1670     1430     2680      857      916      376       33       24
MIN        18       79      142      110      192      206      172       39       71       21       11      8.2
CFSM      .38     4.49     2.89     3.61     4.20     4.26     4.18     1.96     2.28      .77      .15      .11
IN.       .43     5.02     3.33     4.17     4.38     4.91     4.66     2.26     2.54      .89      .17      .12

   e  Estimated.
                                             YOUGHIOGHENY RIVER BASIN

                               03080000  LAUREL HILL CREEK AT URSINA, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1919 - 1998, BY WATER YEAR (WY)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN      118      224      336      353      402      557      440      318      184      106     98.4     83.0
MAX       564     1011      815     1141     1000     1331      879      689      700      388      416      608
(WY)     1955     1986     1973     1937     1956     1936     1970     1924     1941     1985     1935     1971
MIN      6.15     8.91     42.2     57.0     89.3      155      114     52.0     29.4     9.20     8.90     5.73
(WY)     1931     1931     1931     1925     1934     1990     1921     1926     1965     1966     1983     1959

SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1919 - 1998

ANNUAL TOTAL                       95041                     106985.1
ANNUAL MEAN                          260                        293                        268
HIGHEST ANNUAL MEAN                                                                        395              1996
LOWEST ANNUAL MEAN                                                                         164              1931
HIGHEST DAILY MEAN                  2780     May 26            2680     Apr 10            6980       Mar 17 1936
LOWEST DAILY MEAN                     11     Aug 16               8.2   Sep  6               2.4     Sep 26 1932
ANNUAL SEVEN-DAY MINIMUM              15     Sep 14              a9.8   Sep 13               3.4     Sep  5 1957
INSTANTANEOUS PEAK FLOW                                        3020     Apr 10          b10900       Oct 15 1954
INSTANTANEOUS PEAK STAGE                                          4.50  Apr 10              10.63    Oct 15 1954
INSTANTANEOUS LOW FLOW                                            8.2   Sep  5-7             2.2     Sep 26 1932
ANNUAL RUNOFF (CFSM)                   2.15                       2.42                       2.21
ANNUAL RUNOFF (INCHES)                29.22                      32.89                      30.06
10 PERCENT EXCEEDS                   644                        688                        637
50 PERCENT EXCEEDS                   179                        214                        150
90 PERCENT EXCEEDS                    18                         16                         21

   a  Computed using estimated discharges.
   b  From rating curve extended above 6,100 ft3/s on basis of slope-area measurement of peak flow.

                                             MONONGAHELA RIVER BASIN

                               03080000  LAUREL HILL CREEK AT URSINA, PA--Continued
                                   (National Water-Quality Assessment station)

                                              WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1975 to August 1981, April 1996 to September 1998 (discontinued).

REMARKS.--All water-quality samples were collected and analyzed by the U.S. Geological Survey.  This site was used
   as a comparable reference site for mining.  Additional sites in the (NAWQA) fixed-station network are shown in
   figure 6 on page 28.  An explanation of selected abbreviations used in the water-quality tables are given on
   pages 29-31.


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                   DIS-              PH               BARO-                     ACIDITY
                  CHARGE,   SPE-     WATER             METRIC            HARD-   TOTAL              MAGNE-
                   INST.    CIFIC    WHOLE             PRES-             NESS    HEATED   CALCIUM    SIUM, SODIUM,
                   CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,   TOTAL   (MG/L     DIS-      DIS-    DIS-
                    FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    (MG/L   AS        SOLVED   SOLVED  SOLVED
 DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED    AS     CAC03)    (MG/L    (MG/L    (MG/L
                   SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3)            AS CA)   AS MG)   A NA)
                  (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (00900)  (70508)  (00915)  (00925) (00930)

APR
 20...     1200    1180       87      7.0      8.5      728     11.0       22      2.8       6.5     1.4      5.6




                       ALKA-                                       SOLIDS,   NITRO-   NITRO-   NITRO-   NITRO-
              POTAS-  LINITY             CHLO-    FLUO-   SILICA,  RESIDUE    GEN,     GEN,     GEN,   GEN,AM-
               SIUM,  WAT DIS  SULFATE   RIDE,    RIDE,    DIS-    AT 180   NITRITE  NO2+NO3  AMMONIA  MONIA +
               DIS-   TOT IT    DIS-     DIS-      DIS-    SOLVED   DEG. C    DIS-     DIS-     DIS-   ORGANIC
              SOLVED   FIELD    SOLVED   SOLVED   SOLVED   (MG/L     DIS-    SOLVED   SOLVED   SOLVED   TOTAL
     DATE     (MG/L   MG/L AS   (MG/L    (MG/L    (MG/L     AS      SOLVED   (MG/L    (MG/L    (MG/L    (MG/L
              AS K)    CACO3   AS SO4)   AS CL)   AS F)    SIO2)    (MG/L)   AS N)    AS N)    AS N)    AS N)
             (00935)  (39086)  (00945)  (00940)  (00950)  (00955)  (70300)  (00613)  (00631)  (00608)  (00625)

 APR
   20...        .69       8       8.2    10        <.10     3.6       50     <.010     .543     .033      .17




              NITRO-                     PHOS-                                       CARBON,             SED.
             GEN,AM-            PHOS-   PHORUS    ALUM-             MANGA-  CARBON,  ORGANIC             SUSP.
             MONIA +   PHOS-   PHORUS    ORTHO,   INUM,    IRON,    NESE,   ORGANIC   SUS-     SEDI-    SIEVE
             ORGANIC  PHORUS     DIS-    DIS-      DIS-     DIS-     DIS-    DIS-    PENDED    MENT,     DIAM.
              DIS.     TOTAL    SOLVED  SOLVED    SOLVED   SOLVED   SOLVED  SOLVED    TOTAL    SUS-    % FINER
     DATE     (MG/L    (MG/L    (MG/L   (MG/L     (µG/L    (µG/L    (µG/L    (MG/L    (MG/L    PENDED    THAN
              AS N)    AS P)    AS P)   AS P)     AS AL)   AS FE)   AS MN)   AS C)    AS C)    (MG/L)  .062 MM
             (00623)  (00665)  (00666)  (00671)  (01106)  (01046)  (01056)  (00681)  (00689)  (80154)  (70331)

 APR
   20...        .10     .034     .025    <.010      39      56       21       1.6       .30      13       59
 
                                             MONONGAHELA RIVER BASIN

                                    03080000  LAUREL HILL CREEK AT URSINA, PA.

REMARKS.--The following data are for dissolved trace elements in surface water filtered through a 0.45mm filter.


                         WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                              DIS-
                             CHARGE,   ALUM-    ANTI-                      BERYL-            CHRO-
                              INST.    INUM,    MONY,   ARSENIC  BARIUM,   LIUM,   CADMIUM   MIUM,   COBALT,
                              CUBIC     DIS-     DIS-     DIS-    DIS-     DIS-      DIS-    DIS-     DIS-
                               FEET    SOLVED   SOLVED   SOLVED  SOLVED    SOLVED   SOLVED   SOLVED  SOLVED
            DATE      TIME     PER     (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L
                              SECOND   AS AL)   AS SB)   AS AS)   AS BA)   AS BE)   AS CD)   AS CR)   AS CO)
                             (00061)  (01106)  (01095)  (01000)  (01005)  (01010)  (01025)  (01030)  (01035)

        APR
          20...       1200    1180       39     <1.0      <1       40      <1.0     <1.0     <1.0     <1.0




                                        MANGA-   MOLYB-            SELE-            URANIUM
                     COPPER,   LEAD,    NESE,    DENUM,  NICKEL,   NIUM,   SILVER,  NATURAL   ZINC,
                      DIS-      DIS-     DIS-     DIS-    DIS-      DIS-     DIS-     DIS-     DIS-
                      SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
             DATE     (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L
                      AS CU)   AS PB)   AS MN)   AS MO)   AS NI)   AS SE)   AS AG)   AS U)    AS ZN)
                     (01040)  (01049)  (01056)  (01060)  (01065)  (01145)  (01075)  (22703)  (01090)

         APR
           20...      <1.0     <1.0      21      <1.0      1.8      <1      <1.0     <1.0      16

                                             MONONGAHELA RIVER BASIN

                                    03080000  LAUREL HILL CREEK AT URSINA, PA.

REMARKS.--The following data are for trace elements and other constituents that were part of the suspended-
   sediment fraction of the water sample.  Suspended sediments were dewatered using a continuous flow centrifuge,
   dried, and analyzed directly for total metals using a nitric, hydrofluoric, perchloric acid digestion.  Whole
   water contributions by the suspended sediment were then calculated using the suspended-sediment concentration
   in kilograms per liter (kg/L) and the analyte concentration in milligrams per kilogram (µg/kg) from the direct
   analysis of the suspended sediments, resulting in micrograms per gram (mG/G) concentrations.  Values reported
   in percent are the percent of that constituent in the suspended sediment.  When no trace element was detected
   in the sample, the default reporting value is the method detection limit preceded by a less-than sign (<).


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                              DIS-
                            CHARGE,
                             INST.             AN-                       BERYL-             CHRO-
                             CUBIC   ALUM-    TIMONY   ARSENIC  BARIUM    LIUM    CADMIUM   MIUM
                              FEET   INUM      SED.     SED.     SED.     SED.     SED.     SED.
           DATE      TIME     PER    SED,SUS   SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.
                             SECOND  PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)
                            (00061)  (30221)  (29816)  (29818)  (29820)  (29822)  (29826)  (29829)

       APR
         20...       1200    1180      3.7       1       11       270       2        5       43




                                                                                            PHOS-
                   COBALT             IRON             LITHIUM   MAN-    MOLYB-            PHORUS
                    SEDI-   COPPER    SEDI-    LEAD     SEDI-   GANESE    DENUM   NICKEL    SEDI-
                    MENT     SED.     MENT     SED.     MENT     SED.     SED.     SED.     MENT
           DATE     SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.
                   (mG/G)   (mG/G)   PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   PERCENT
                   (35031)  (29832)  (30269)  (29836)  (35050)  (29839)  (29843)  (29845)  (30292)

       APR
         20...        26      16       2.1      48       28      1600      <10       51      590




                                      STRON-            TITA-
                    SELE-             TIUM              NIUM    URANIUM   VANA-
                    NIUM    SILVER    SEDI-    THAL-    SEDI-    SEDI-    DIUM     ZINC
                    SED.     SED.     MENT     LIUM     MENT     MENT     SED.     SED.
           DATE     SUSP.    SUSP.    SUSP.   SUS SED   SUSP.    SUSP.    SUSP.    SUSP.
                   (mG/G)   (mG/G)   (mG/G)    (mG/G)  PERCENT  (mG/G)   (mG/G)   (mG/G)
                   (29847)  (29850)  (35040)  (49955)  (30317)  (35046)  (29853)  (29855)

       APR
         20...        1       <1        58     <100       .21     100       50      260

       




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